Renault Espace 2005 2.2 DCi - 1lt oil every 500 miles, fault code 1815 - Fixed #
Posted by Martin Kelly on November 1, 2010, 9:34 am
Year of Manufacture *: 2005 ( Optional ) Engine Code or CC: G9T
Hi
I looked at the above vehicle last week with regard to it is now using about 1L of engine oil in 500 miles, blue smoke on startup sometimes, fault code 1815 inlet air/boost pressure sensor circuit fault. I removed the top engine cover to find oil in the centre 2 injector recesses and surrounding area. I scoped the boost pressure sensor and left it running for 1/2 hr - all ok. Took it out for 'enthusiastic' road test, getting 1.7 bar boost, while datalogging sensor - all ok. Opened the bonnet to find the top of the engine (inlet manifold to cam cover area) soaked in engine oil. The inlet manifold and cam cover box is all a one piece plastic unit and have found out that they crack. I used Smoke Pro on the inlet and nothing showed. To see if boost was leaking from inlet into cam cover I put a vacuum/pressure gauge in the dipstick tube got zero movement.
Has anyone else had this, do the manifolds crack between inlet and cam cover box and are the cracks visible externally?
Customer is dropping the vehicle back next week for further investigation and it looks like removing the manifold/cam cover box could take hours, so I wouldn't mind the benefit of someone elses experience here.
Thanks, Martin.
Re: Renault Espace 2005 2.2 DCi - 1lt oil every 500 miles, fault code 1815 #
Martin. New manifold/cam cover needed. They warp. so make sure the dealer has one (most likely) and the customer knows how much its going to cost. Not as bad to change as it looks. Kev.
I removed the manifold assy. and found that it had warped as you said Kev. The centre area of the rocker box was distorted upwards relieving the pressure on the centre gasket, this allowed boost pressure to leak into the rocker box and forced oil out of the rocker box and filled up the centre 2 injector reccesses and surrounding area. Oil was probably running down the inlet ports after switching off which caused the blue smoke on start up. As you said Kev, not as involved as it looks. Roadtest after repair and the performance was improved and got upto 2.5 bar boost as opposed to 1.7 previously.